| Effects of super absorbent polymers’ dosages on soil nutrient and quality of flue\|cured tobacco in Western Henan arid region |
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| DOI：10.7606/j.issn.1000-7601.2018.03.23 |
| Key Words: super absorbent polymers dosages soil nutrients quality of flue-cured tobacco leaf Western Henan arid region |
| Author Name | Affiliation | | MEI Ya-nan | College of Tobacco Science, Henan Agricultural University, National Tobacco Cultivation & Physiology & Biochemistry Research Center, Zhengzhou, Henan 450002, China | | ZHAO Shi-min | Luoyang Tobacco Company, Luoyang, Henan 471000, China | | ZHAO Ming-qin | College of Tobacco Science, Henan Agricultural University, National Tobacco Cultivation & Physiology & Biochemistry Research Center, Zhengzhou, Henan 450002, China | | KONG De-hui | Luoyang Tobacco Company, Luoyang, Henan 471000, China | | SHI Long-fei | Luoyang Tobacco Company, Luoyang, Henan 471000, China |
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| Abstract: |
| In order to improve water shortage of tobacco field and unstable yield and quality of tobacco in the arid land of west Henan Province, four treatments of super absorbent polymers (SAPs) in the field experiments were carried out in Luoyang tobacco growing area. T1 (CK) represented local conventional cultivation measures without SAP, T2 represented 15 kg·hm-2 of SAPs, T3 represented 30 kg·hm-2 of SAPs and T4 represented 45 kg·hm-2 of SAPs. The influence of super absorbent polymers on soil moisture and nutrient, the growth of tobacco, chemical property and economic characters of flue-cured tobacco were studied. Results indicated that the T4 and T3 can improve the soil moisture content, alkali-hydrolyzable nitrogen content, available phosphorus content, available potassium content and organic matter content in each stage of the whole tobacco growing period than CK; Application the SAP can significantly increase the content of total sugar, reducing sugar, potassium, carotenoid catabolites, the products of browning reaction and neophytadiene of tobacco, decrease the nicotine, chlorine, aromatic amino acid and cembratriendiol catabolites content. The ratio of sugar to nicotine and the ratio of potassium to chlorine had increased. The neutral aroma components of tobacco was coordinated, which improves the quality of tobacco leaves. The tobacco yield from T4 and T3 treatments had significantly increased by 12.79% and 10.25% compared with CK, respectively. The production value of tobacco from T4, T3 and T2 treatments had significantly increased by 15.07%, 15.25% and 4.51%. Under the condition of 30 kg·hm-2 SAPs, not only available soil nutrients improved, but also the chemical components and economic benefit of flue-cured tobacco improved. |
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